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Implantable access devices

  • US 5,356,381 A
  • Filed: 11/24/1993
  • Issued: 10/18/1994
  • Est. Priority Date: 03/01/1990
  • Status: Expired due to Fees
First Claim
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1. An implantable access device for permitting the access to a predetermined location within the body of a patient through an implanted internal catheter by a percutaneously placed filament such as a needle, external catheter, wire or optical fiber, said device being implantable within the body of the patient comprising:

  • a housing having a funnel shaped entrance orifice, a passageway and an exit orifice adapted for communication with the internal catheter, said entrance orifice having a decreasing cross sectional area defining a target area for insertion of said filament and causing said filament introduced into said entrance orifice to be directed to and enter said passageway, said passageway connecting said entrance orifice with said exit orifice,a valve means positioned within said housing and normally remaining closed for providing resistance to flow of fluids through said passageway, said valve means also permitting passage of said filament therethrough for enabling said filament to pass through said housing and communicate with said predetermined location, andmeans for supporting said access device within the body of the patient.

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